o2 Sensor code p0140
1997 Caravan 2.4L. I have replaced the O2 sensor indicated by code P0140 but the check engine light remains with the same code. (all codes were reset). A local auto parts store had a guide that suggested checking the circuit breaker, fuse or relay.
Does anyone know where this might be located. I cannot find one labled for o2 sensor so I am guessing it may be using another or it is undocumented.
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